Patent · US Active

Phase modulator for fibre-optic gyroscope, fibre-optic gyroscope and method for operating a phase modulator

US10359286B2 · kind B2 · utility

0Cited by

7References

13Claims

0Family size

Assignee

NORTHROP GRUMMAN LITEF GMBH · DE

Inventors

Guenter Spahlinger · Stuttgart, DE
Olaf Deppe-Reibold · Emmendingen, DE

Key dates

Filing date	Apr 11, 2017
Grant date	Jul 23, 2019
Priority date	—
Expiry date	Apr 11, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01C19/721
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The control system for a fiber-optic gyroscope comprises a phase modulator for modulating a phase of a light signal and a control unit for producing a control signal, by the magnitude of which the phase is modulated and which is fed to the phase modulator. Moreover, the control system comprises an integration unit for determining an integral value of an integral over an input signal. Here, the control signal assumes a first value or a second value depending on the integral value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.